In the device's Bluetooth® settings, choose to "FORGET" or "REMOVE" the Bose® speaker. Then, pair the device to the speaker again and retest

On the speaker, press and hold the Bluetooth® button for ten seconds until you hear a tone and “Bluetooth® device list cleared”, if voice prompts are enabled

Reboot the Bluetooth® device. This is typically done by shutting it down completely and then restarting it

Reset the Bose® speaker by turning it on and holding the power button for 10 seconds until it turns off. Note: A factory reset clears the speaker's language setting and its paired mobile device memory, returning the speaker to original factory settings

Try a different Bluetooth® device to determine if there is an issue with the device